Demodulator High Bandwidth Modifications

Document #:

LIGO-E1100044-v2

Document type:

E - Engineering documents

Abstract:

Lists the modifications of the demodulator board D0902745-v4 for high bandwidth operations. For the MC servo, and Common Mode Servo, the slew rate and bandwidth requirements are such that the baseline LIGO RF demodulator design is not sufficient. This set of modifications optimizes the demodulator design for these, and similar applications.

Files in Document:

• PDF Version (IQ_Demodulator_2-chn -E1100044_v2.pdf, 344.5 kB)

Topics:

• Sensing and Control

Authors:

• Daniel Sigg

Notes and Changes:

Version 2 of this document adds explanatory text to make the purpose of the high bandwidth modification more clear. This document is a printout of the description for this module that appears in the aLIGO wiki at: https://awiki.ligo-wa.caltech.edu/aLIGO/IQ_Demodulator_2-chn

Related Documents:

• LIGO-D0902745-v4: aLIGO LSC I&Q Demodulator Board
• LIGO-D1000181-v2: IQ FET Demodulator Assembly